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xenn [34]
2 years ago
11

Simplify (4m+5n)^2+(5n+4n)^2​

Mathematics
1 answer:
sukhopar [10]2 years ago
7 0

Answer:

16m^2+40mn+106n^2

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At a coffee shop, the price of a cup of coffee increased from $1.20 to $1.44. What is the percent increase in the cost of the co
Scorpion4ik [409]
The answer to the question is 20%
7 0
3 years ago
What is the 5th term of an arithmetic sequence if t2 = -5 and t6 = 7
RUDIKE [14]
An=Asub1+d(n-1)
Asub5= -5+½(4)
=-5+7
=2
5 0
3 years ago
1. what would the effect have been on the calculated formula weight ([9] above) of your unknown as compared to the true formula
kramer

If the solution is blue-green, this indicates that some copper is still present in the solution and that not all of it has precipitated. Expect it to be too low because you will have less mass.

With very few exceptions, all copper(I) (cuprous) compounds are diamagnetic and colorless. Cu2O, Cu2Cl2, and cuprous sulfide are a few of the significant commercial compounds of copper(I) (Cu2S).

The molar mass of the element copper is determined by looking at its average atomic mass, which is 63.55 AMU on the periodic table. Since it is also our molar mass, we will now put it in a different unit: grams over moles (63.55 gmol). That is copper's molar mass.

If the solution is blue-green, there is still copper in the solution and not all of it has precipitated. Because you will have less bulk, anticipate it to be too low.

To know more about copper, refer to this link:

brainly.com/question/1543891

#SPJ4

3 0
1 year ago
How do you solve 3px=2q (r-5x) , Solve for x ??
VashaNatasha [74]
Okay for this question the answer is x=0.
5 0
3 years ago
Please help and explain how you did these problems :) help me with 14,16,18,20,22
igor_vitrenko [27]
You do the inverse operation for each one. so for #14, since 25g is multiplication you divide it by 25 to cancel it out, then you divide -175 by 25 which gives you -7
7 0
3 years ago
Read 2 more answers
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